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State Income Tax worksheet

Grades 6–7 · CCSS 6.NS.B.3

Solve each problem and show your work. Round answers to 2 decimal places where needed.

  1. Problem 1.
    • State: New Mexico
    • Filing status (2026): Single
    • Wages for the year: $105,000

    Find: New Mexico income tax for 2026

  2. Problem 2.
    • State: New Mexico
    • Filing status (2026): Married filing separately
    • Wages for the year: $85,000

    Find: New Mexico income tax for 2026

  3. Problem 3.
    • State: Delaware
    • Filing status (2026): Married filing jointly
    • Wages for the year: $60,000

    Find: Delaware income tax for 2026

  4. Problem 4.
    • State: Maryland
    • Filing status (2026): Head of household
    • Wages for the year: $50,000

    Find: Maryland income tax for 2026

  5. Problem 5.
    • State: New Jersey
    • Filing status (2026): Head of household
    • Wages for the year: $67,500

    Find: New Jersey income tax for 2026

  6. Problem 6.
    • State: Pennsylvania
    • Filing status (2026): Single
    • Wages for the year: $90,000

    Find: Pennsylvania income tax for 2026

  7. Problem 7.
    • State: Idaho
    • Filing status (2026): Head of household
    • Wages for the year: $60,000

    Find: Idaho income tax for 2026

  8. Problem 8.
    • State: Delaware
    • Filing status (2026): Married filing separately
    • Wages for the year: $62,000

    Find: Delaware income tax for 2026

  9. Problem 9.
    • State: New Mexico
    • Filing status (2026): Head of household
    • Wages for the year: $90,000

    Find: New Mexico income tax for 2026

  10. Problem 10.
    • State: Iowa
    • Filing status (2026): Married filing separately
    • Wages for the year: $110,000

    Find: Iowa income tax for 2026

Answer key: State Income Tax worksheet

  1. 1. New Mexico income tax for 2026: $3,814.10

    1. New Mexico starts from your wages after pre-tax amounts

      starting income=$105,000.00
    2. Subtract the state's standard deduction

      standard deduction=$16,100.00
    3. What's left is the income the state taxes

      state taxable income=$88,900.00
    4. Apply the state's brackets to that income, one slice at a time

      tax before credits=$3,814.10
    5. Your effective rate is the tax as a share of your wages

      $3,814.10$105,000.00=3.63%
  2. 2. New Mexico income tax for 2026: $2,970.60

    1. New Mexico starts from your wages after pre-tax amounts

      starting income=$85,000.00
    2. Subtract the state's standard deduction

      standard deduction=$16,100.00
    3. What's left is the income the state taxes

      state taxable income=$68,900.00
    4. Apply the state's brackets to that income, one slice at a time

      tax before credits=$2,970.60
    5. Your effective rate is the tax as a share of your wages

      $2,970.60$85,000.00=3.49%
  3. 3. Delaware income tax for 2026: $2,362.75

    1. Delaware starts from your wages after pre-tax amounts

      starting income=$60,000.00
    2. Subtract the state's standard deduction

      standard deduction=$6,500.00
    3. What's left is the income the state taxes

      state taxable income=$53,500.00
    4. Apply the state's brackets to that income, one slice at a time

      tax before credits=$2,582.75
    5. Subtract the state's personal credit

      $2,582.75−$220.00=$2,362.75
    6. Your effective rate is the tax as a share of your wages

      $2,362.75$60,000.00=3.94%
  4. 4. Maryland income tax for 2026: $1,852.25

    1. Maryland starts from your wages after pre-tax amounts

      starting income=$50,000.00
    2. Subtract the state's standard deduction

      standard deduction=$6,700.00
    3. Subtract the state's personal exemptions

      exemptions=$3,200.00
    4. What's left is the income the state taxes

      state taxable income=$40,100.00
    5. Apply the state's brackets to that income, one slice at a time

      tax before credits=$1,852.25
    6. Your effective rate is the tax as a share of your wages

      $1,852.25$50,000.00=3.7%
  5. 5. New Jersey income tax for 2026: $1,209.25

    1. New Jersey starts from your wages after pre-tax amounts

      starting income=$67,500.00
    2. Subtract the state's personal exemptions

      exemptions=$1,000.00
    3. What's left is the income the state taxes

      state taxable income=$66,500.00
    4. Apply the state's brackets to that income, one slice at a time

      tax before credits=$1,209.25
    5. Your effective rate is the tax as a share of your wages

      $1,209.25$67,500.00=1.79%
  6. 6. Pennsylvania income tax for 2026: $2,763.00

    1. Pennsylvania starts from your wages after pre-tax amounts

      starting income=$90,000.00
    2. What's left is the income the state taxes

      state taxable income=$90,000.00
    3. Apply the flat 3.07% rate

      tax before credits=$2,763.00
    4. Your effective rate is the tax as a share of your wages

      $2,763.00$90,000.00=3.07%
  7. 7. Idaho income tax for 2026: $1,390.08

    1. Idaho starts from your wages after pre-tax amounts

      starting income=$60,000.00
    2. Subtract the state's standard deduction

      standard deduction=$24,150.00
    3. What's left is the income the state taxes

      state taxable income=$35,850.00
    4. Apply the state's brackets to that income, one slice at a time

      tax before credits=$1,390.08
    5. Your effective rate is the tax as a share of your wages

      $1,390.08$60,000.00=2.32%
  8. 8. Delaware income tax for 2026: $2,764.13

    1. Delaware starts from your wages after pre-tax amounts

      starting income=$62,000.00
    2. Subtract the state's standard deduction

      standard deduction=$3,250.00
    3. What's left is the income the state taxes

      state taxable income=$58,750.00
    4. Apply the state's brackets to that income, one slice at a time

      tax before credits=$2,874.13
    5. Subtract the state's personal credit

      $2,874.13−$110.00=$2,764.13
    6. Your effective rate is the tax as a share of your wages

      $2,764.13$62,000.00=4.46%
  9. 9. New Mexico income tax for 2026: $2,483.95

    1. New Mexico starts from your wages after pre-tax amounts

      starting income=$90,000.00
    2. Subtract the state's standard deduction

      standard deduction=$24,150.00
    3. What's left is the income the state taxes

      state taxable income=$65,850.00
    4. Apply the state's brackets to that income, one slice at a time

      tax before credits=$2,483.95
    5. Your effective rate is the tax as a share of your wages

      $2,483.95$90,000.00=2.76%
  10. 10. Iowa income tax for 2026: $3,528.20

    1. Iowa starts from your federal taxable income: wages after pre-tax amounts and the federal standard deduction

      starting income=$93,900.00
    2. What's left is the income the state taxes

      state taxable income=$93,900.00
    3. Apply the flat 3.8% rate

      tax before credits=$3,568.20
    4. Subtract the state's personal credit

      $3,568.20−$40.00=$3,528.20
    5. Your effective rate is the tax as a share of your wages

      $3,528.20$110,000.00=3.21%